Sander.



PATENTED JUNE 30, 1908.

J. H. HANLON.

SANDER.

APPLICATION FILED NOV. 30, 1907.

2 SHEETS-SHEET 1.

lllllllll y Uiov w/eya No. 892,151. PA TENTED JUNE 30, 1908. J. H. HANLON.

SANDER.

APPLICATION FILED NOV. 30, 1907.

2 SHEETS-SHEET 2.

JOHN H. HANLON, or SOMERVILLE, MASSACHUSETTS.

SANDER.

Specification of Letters Patent.

Patented June 30, 1908.

Application filed November 30, 1907. Serial No. 404,547.

Y Too-ll whom it may concern:

in s. q

ily resent invention has for its ob'ect an improvement in track sanders and has to do particularly with that class of sanders in which the sand is projected through the sand pipe leading to the rails by means of a jet of com ressed air.

e the invention is intended particularly foruse on locomotives, it is also adapted for use on street cars and other vehicles which require sanders.

. The present invention has particularly for 'ts object to'provide a sander which may be readil removable from the exterior of the.

sand ox, without the necessity of removing the sand from the interior of the sand box in case the sander should become clogged, but if desired it may also be used with an air pipe inside the sand box, or ,may be placed at a distance from the sand box receiving the sand therefrom through a pipe down which the sand falls under the action of gravity.

The invention also provides an air jet or are preferably attached to the said cover 17 nozzle which is less likely to become clo ged same more economical than those heretofore employed, but to w 'ch access-may be readily ha'd should it become clogged. The sander. is also. especially ada ted'to draw the sand from the very floor of t 'ebox, thus making it ossibleto use the y t an heretofore.

The invention will be fully understood from the following description taken in conn'ection with the accompanfyinfi drawings, and the novel featuresthereo w' be pointed out and clearly defined in the claims at the :,close of the specification.

In the drawings,Figure 1 is a side elevation of asander embodying my invention.

Fig. 2 is a'longitudinal section of the parts seen in Fig. 1. Fi' 3 is a side elevation of the air nozzle, shie d and cover. Fig. 4 is a section on line 4-4, Fig. 3, looking in the direction of the arrows. Fig. 5 shows a sand box equipped with-my improved sander and an air pipe within the box. Fig. 6 shows my sander as .used upon a street car, the sand being supplied to the sander through a downwardly extending pipe to the lower end of which the sander is attached.

Referring to the 'drawings,-The body of the sander is indicated at 11. It is provided near the left hand end, as shown in Fig. 1, with screw threads 12 adapted to engage the wall of the sand box or dome 13, with its end projecting somewhat into the interior of the sand box, as shown at 14, so that the sand used by the sander may not be drawn from that portion of the sand which lies directly against the wall of the sand box as sand which lies directly against the wall of the sandbox sometimes contains bits of scale oris damp or moist, and on that accountis not likely tofeedwell. The other end ofthesander is provided, as shown. at 15, with a connection for the sand delivery pipe which leads to the the rails. For convenience in removing the sander from the dome, I provide a flattened part 16 for engagement with a wrench. As. will be seen from the drawings, the body of the sander is substantiall in the form of an elbow, the parts of which lie at an oblique angle to each other. At the turn of the elbow a clean-out o em'nglis provided, and

this opening is close by t is secured to the body of the sander by means of the cap screws 18, a rubber gasket 19 being providedto insure a tight closure. g

i The air discharge nozzle 20 and shield 21 so that all the interior structure of the sander may be removed with the cover 17 when it is [desired to clean the interior of the sander. 1 In the drawings, the parts are shown as cast in a single piece with the cover. An air duct 22 leads ob iquely downwardfrom the upper the air discharge aperture of which is shown at 23. The said air duct 22 is of comparatively large area, as compared with the air dischargeaperture 23', and the said air discharge aperture enters the said' air duct 22' obliquely and at a point above the bottom of the said air duct. It will be seen that there is no square shoulder within the airduct near the openinginto the air discharge aperture from the air duct, but on the contrary there is a smooth inclined surface 221, so that there is no tendenc for scale, dust, or dirt to collect and block t e air discharge aperture. The tendency of the dirt is to remain below the pfpening into the air discharge a erture but for any reason a particle 0 so e hape cover 17 which 7 side of the cover to the air discharge nozzle,

charge aperture when the sander is not being used, it is likely to be discharged and blown back therefrom when the air is turned on. The air duct 22 is extended inwardly, that is toward the interior of the sandbox, from the air discharge aperture, and its rear end is closed by a plug 24 thereby forminga trap for the collection of scale, grease or other foreign substances, such as arelikely to be present in the air pipe. The air is supplied to the said nozzle by means of the air pipe 25. It will be seen that if at any time the air discharge aperture becomes clogged, the nozzle may be readily removed by taking oil the cover 17 and withdrawing therewith the said air discharge nozzle. The plug 24 may then be removed and the trap. and air discharge aperture cleaned. I

In order that there may be no tendency on the part of the sander to blow back into the box instead of driving the sand down the air discharge pipe, I provide the shield 21 which vents. the wearing away extends forward from near the air dischar e aperture 23 to the cover 17, the said shie d 21 being downwardly curved on two sides as shown in Fig. 4. This shield also-helps to direct the sand and air and thereby to cause a greater vacuum back of the nozzle and increase the sucking action on the sand in the source of sand supply. It also tends to pro' feet the air pipe from wear under the action of the sand. The inner end of the said shield is also cutaway as shown-at 26 to admit a more direct flow of sand into the sander, and to give as large a passageway forthe sand as possible so that small stones will not clog the sander. Directly opposite to the air discharge aperture 23 is an opening closed by a plug 27, ut said plug 27 screws only a short distance into said opening, thereby lea'ving a space wherein the sand may lodge and form a'sand and air cushion whichefi'ectually preof the parts. The said air discharge nozz e 23 is located very near the bottom of the sander so that the sand is drawn from a point onthe bottom of the box when my device is directlyconnec'ted with the sand box. This results in greater econom in the useof sand.

g It be seenfrom the foregoing that m improved sander maybe readily cleaned hot as regards the air discharge aperture and the sand intake by removing the cover 17 when the entire interior of the sander is accessible.

The sander is also particularly adapted for use with unscreened sand as there are no apertures of small area through which the sand has to ass and consequently there is no danger of c ogging.

It is sometimes desirable to have the air pipe for thesander enter-the body of the sander from'the inside of the sand box instead of from the outside as is shown in Fig. 1. In this case, I construct my improved is designated 28, and the sander 29. A branch 30 of the air pi e 28 leads to the air discharge nozzle 31, w 'le the main portion ofthe pipe passes through the wall of the sand box and is closed by a plug 32 It will be seen that the portion 33 of the air pipe 28 which extends beyond the branch 30 serves the air pipetend to lodge. The nozzle employed may be of any convenient form and may be readily removed by a socket wrench far the ap 'lication of my sander directly to the sand ox or sand dome has been described, but it is frequently desired to use the sander at a distance from the sandbox, as is necessary in street cars and sometimes in locomotives. This use of my sander-is illustrated in Fig. 6, where the'sand box is designated 35. From this, leads the sand intake ipe 36 which is provided at its lower end with a large elbow 37 into which is screwed the sander 38. The sand discharge pipe is shown at 39 and the air ipe at 40. The sand falls by gravity down tli sand de very the nozzle 41..

I claim as my invention:

1. In a pneumatic track sander, the combination of a sander-body comprising an elbow and provided witha clean-out opening, a cover for said clean-out opening and an air nozzle passing through the said cover and lying on the floor of the interior of'the sanderbody.

pipe 39 by the jet of air from nation of a sander-body comprising an obopening and an air nozzle attached tosaid cover and ly' on the floor of the interior of the sander-body. I v

3. In a pneumatic track sander, the combination of a sander-body comprisingan elbow, a clean -out openin a cover therefor, an air nozzle and a shielddepending downwardly from the said air nozzle. i 4. In a pneumatic track sander, the combi lique angled elbow, a clean-out opening at the ,turn of the elbow, a cover therefor, an air "nozzle, and a shield depending downwardly from the said air nozzle, the said air nozzle lying on the floor of the sander-bod ,5. In a pneumatic track sander, t e combination of a sander-body and an air discharge nozzle within said sander-body, the said air dischar e nozzle having an air duct and an air disc ar e aperture, said air duct being inclined at t e point where it unites with the said air discharge aperture.

6. In a pneumatic track sander, thecombination of a sander-body and an air discharge sander as shown in Fig. where the air pipe as a trap into which all foreign substances in e sand in-. take pipie 36 and is then forced down the 2. In a pneumatic track sander, the combi lique angled elbow and provided with a clean-out opening, a cover for said clean-out after the cover 34. has been removed. Thus.-

nation of a sander-body comprising aniobsaid air discharge aperture, and bein nozzle within said sander-body, the said air discharge nozzle having an air duct and an air discharge aperture, said air duct being inclined at t e point where it unites with the tended downwardly and rearwardly 0 the said air discharge aperture to form a trap for forei n substances 1n the air duct.

7. n a pneumatic track sander, the combi- 10 nation of a sander-body comprising an elbow rovided with a clean-out opening, a cover. or said clean-out openlng, and an air nozzle passin through the said cover and lyin on the oor of the interior of the sai sander-body, said cover having therein an 15 in presence of two witnesses.

JOHN H. HANLON.

Witnesses; I

GEORGE L. DIKE, ALICE H. MORRISON. 

